diff --git a/pkg/front_end/lib/src/fasta/fasta_codes_generated.dart b/pkg/front_end/lib/src/fasta/fasta_codes_generated.dart
index 6a8cdc1df53..fb9368f94d9 100644
--- a/pkg/front_end/lib/src/fasta/fasta_codes_generated.dart
+++ b/pkg/front_end/lib/src/fasta/fasta_codes_generated.dart
@@ -123,6 +123,24 @@ FastaMessage _formatFactoryNotSync(Uri uri, int charOffset) {
       arguments: {});
 }
 
+// DO NOT EDIT. THIS FILE IS GENERATED. SEE TOP OF FILE.
+const FastaCode<_SuperNullAware> codeSuperNullAware =
+    const FastaCode<_SuperNullAware>("SuperNullAware",
+        template: r"'super' can't be null.",
+        tip: r"Try replacing '?.' with '.'",
+        dart2jsCode: "FASTA_IGNORED",
+        format: _formatSuperNullAware);
+
+typedef FastaMessage _SuperNullAware(Uri uri, int charOffset);
+
+// DO NOT EDIT. THIS FILE IS GENERATED. SEE TOP OF FILE.
+FastaMessage _formatSuperNullAware(Uri uri, int charOffset) {
+  return new FastaMessage(uri, charOffset, codeSuperNullAware,
+      message: "'super' can't be null.",
+      tip: "Try replacing '?.' with '.'",
+      arguments: {});
+}
+
 // DO NOT EDIT. THIS FILE IS GENERATED. SEE TOP OF FILE.
 const FastaCode<_PrivateNamedParameter> codePrivateNamedParameter =
     const FastaCode<_PrivateNamedParameter>("PrivateNamedParameter",
diff --git a/pkg/front_end/lib/src/fasta/kernel/fasta_accessors.dart b/pkg/front_end/lib/src/fasta/kernel/fasta_accessors.dart
index 8f95551f68b..324352bb020 100644
--- a/pkg/front_end/lib/src/fasta/kernel/fasta_accessors.dart
+++ b/pkg/front_end/lib/src/fasta/kernel/fasta_accessors.dart
@@ -331,6 +331,10 @@ class ThisAccessor extends FastaAccessor {
   buildPropertyAccess(
       IncompleteSend send, int operatorOffset, bool isNullAware) {
     if (isInitializer && send is SendAccessor) {
+      if (isNullAware) {
+        helper.addCompileTimeError(
+            operatorOffset, "Expected '.'\nTry removing '?'.");
+      }
       return buildConstructorInitializer(
           offsetForToken(send.token), send.name, send.arguments);
     }
@@ -484,6 +488,12 @@ class SendAccessor extends IncompleteSend {
     }
     if (receiver is PrefixBuilder) {
       PrefixBuilder prefix = receiver;
+      if (isNullAware) {
+        helper.addCompileTimeError(
+            offsetForToken(token),
+            "Library prefix '${prefix.name}' can't be used with null-aware "
+            "operator.\nTry removing '?'.");
+      }
       receiver = helper.scopeLookup(prefix.exports, name.name, token,
           isQualified: true, prefix: prefix);
       return helper.finishSend(receiver, arguments, offsetForToken(token));
@@ -544,6 +554,12 @@ class IncompletePropertyAccessor extends IncompleteSend {
     }
     if (receiver is PrefixBuilder) {
       PrefixBuilder prefix = receiver;
+      if (isNullAware) {
+        helper.addCompileTimeError(
+            offsetForToken(token),
+            "Library prefix '${prefix.name}' can't be used with null-aware "
+            "operator.\nTry removing '?'.");
+      }
       return helper.scopeLookup(prefix.exports, name.name, token,
           isQualified: true, prefix: prefix);
     }
diff --git a/pkg/front_end/lib/src/fasta/parser/parser.dart b/pkg/front_end/lib/src/fasta/parser/parser.dart
index 61e9506ee85..deb86f89dd8 100644
--- a/pkg/front_end/lib/src/fasta/parser/parser.dart
+++ b/pkg/front_end/lib/src/fasta/parser/parser.dart
@@ -51,6 +51,7 @@ import '../fasta_codes.dart'
         codeRequiredParameterWithDefault,
         codeSetterNotSync,
         codeStackOverflow,
+        codeSuperNullAware,
         codeTypeAfterVar,
         codeTypeRequired,
         codeUnexpectedToken,
@@ -3057,6 +3058,8 @@ class Parser {
       listener.handleNoTypeArguments(token);
       token = parseArguments(token);
       listener.endSend(beginToken, token);
+    } else if (optional("?.", token)) {
+      reportRecoverableErrorCode(token, codeSuperNullAware);
     }
     return token;
   }
diff --git a/pkg/front_end/messages.yaml b/pkg/front_end/messages.yaml
index f441bcc7c50..90d716e914a 100644
--- a/pkg/front_end/messages.yaml
+++ b/pkg/front_end/messages.yaml
@@ -429,3 +429,8 @@ CatchSyntax:
   template: "'catch' must be followed by '(identifier)' or '(identifier, identifier)'."
   tip: "No types are needed, the first is given by 'on', the second is always 'StackTrace'."
   dart2jsCode: FASTA_IGNORED
+
+SuperNullAware:
+  template: "'super' can't be null."
+  tip: "Try replacing '?.' with '.'"
+  dart2jsCode: FASTA_IGNORED
diff --git a/tests/language/language_kernel.status b/tests/language/language_kernel.status
index b364051a6a1..a7ba772711c 100644
--- a/tests/language/language_kernel.status
+++ b/tests/language/language_kernel.status
@@ -342,11 +342,6 @@ type_variable_bounds4_test/01: RuntimeError
 
 [ $compiler == dartk || $compiler == dartkp ]
 compile_time_constant_test/01: MissingCompileTimeError # Fixed in ahe's dev branch.
-conditional_method_invocation_test/11: MissingCompileTimeError # Fixed in ahe's dev branch.
-conditional_property_access_test/09: MissingCompileTimeError # Fixed in ahe's dev branch.
-conditional_property_assignment_test/20: MissingCompileTimeError # Fixed in ahe's dev branch.
-conditional_property_assignment_test/21: MissingCompileTimeError # Fixed in ahe's dev branch.
-conditional_property_assignment_test/22: MissingCompileTimeError # Fixed in ahe's dev branch.
 const_constructor_mixin2_test/01: MissingCompileTimeError # Fixed in ahe's dev branch.
 const_constructor_mixin3_test/01: MissingCompileTimeError # Fixed in ahe's dev branch.
 const_constructor_mixin_test/01: MissingCompileTimeError # Fixed in ahe's dev branch.
@@ -413,23 +408,6 @@ ref_before_declaration_test/06: MissingCompileTimeError # Fixed in ahe's dev bra
 ref_before_declaration_test/07: MissingCompileTimeError # Fixed in ahe's dev branch.
 regress_29349_test: CompileTimeError # Fixed in ahe's dev branch.
 scope_variable_test/01: MissingCompileTimeError # Fixed in ahe's dev branch.
-super_conditional_operator_test/01: MissingCompileTimeError # Fixed in ahe's dev branch.
-super_conditional_operator_test/02: MissingCompileTimeError # Fixed in ahe's dev branch.
-super_conditional_operator_test/03: MissingCompileTimeError # Fixed in ahe's dev branch.
-super_conditional_operator_test/04: MissingCompileTimeError # Fixed in ahe's dev branch.
-super_conditional_operator_test/05: MissingCompileTimeError # Fixed in ahe's dev branch.
-super_conditional_operator_test/06: MissingCompileTimeError # Fixed in ahe's dev branch.
-super_conditional_operator_test/07: MissingCompileTimeError # Fixed in ahe's dev branch.
-super_conditional_operator_test/08: MissingCompileTimeError # Fixed in ahe's dev branch.
-super_conditional_operator_test/09: MissingCompileTimeError # Fixed in ahe's dev branch.
-super_conditional_operator_test/10: MissingCompileTimeError # Fixed in ahe's dev branch.
-super_conditional_operator_test/11: MissingCompileTimeError # Fixed in ahe's dev branch.
-super_conditional_operator_test/12: MissingCompileTimeError # Fixed in ahe's dev branch.
-super_conditional_operator_test/13: MissingCompileTimeError # Fixed in ahe's dev branch.
-super_conditional_operator_test/14: MissingCompileTimeError # Fixed in ahe's dev branch.
-super_conditional_operator_test/15: MissingCompileTimeError # Fixed in ahe's dev branch.
-super_conditional_operator_test/16: MissingCompileTimeError # Fixed in ahe's dev branch.
-this_conditional_operator_test/01: MissingCompileTimeError # Fixed in ahe's dev branch.
 
 [ $unchecked && ($compiler == dartk || $compiler == dartkp) ]
 const_conditional_test/08: MissingCompileTimeError # KernelVM bug: Constant evaluation.